IPN
Viral
🟠 Severe
💉 Vaccine Available
Infectious Pancreatic Necrosis
🦠 Infectious pancreatic necrosis virus (IPNV) · Birnaviridae
📋 Overview
IPN is ubiquitous in salmonid aquaculture worldwide and is a major economic problem in the post-smolt phase of Atlantic salmon farming. Genetic resistance (QTL on chromosome 26) has been incorporated into selective breeding programmes, dramatically reducing losses.
📊 Key Facts
Causative Agent
Infectious pancreatic necrosis virus (IPNV)
Genome Type
dsRNA, 2 segments
Geographic Range
Worldwide in salmonid aquaculture
Transmission Routes
Vertical (egg), horizontal, carrier fish
Primary Host
Salmonids, particularly Atlantic Salmon post-smolts
🩺 Clinical Signs
Spiral/corkscrew swimming, abdominal distension, dark colouration, pale liver, white mucoid intestinal contents, pancreatic necrosis.
🔬 Symptoms
🔬
Corkscrew swimming
Neurological Acute
🔬
White mucoid intestinal contents
Digestive Acute
🔬
Abdominal distension
Abdominal Acute
🧪 Diagnosis
Cell culture (CHSE-214), RT-PCR, ELISA.
💊 Treatment
ℹ️ Treatment options are limited. Consult a qualified fish health professional.
No effective antiviral; management through genetic selection for resistance.
🛡️ Prevention
ℹ️ Prevention is the most effective strategy for managing this disease in aquaculture and aquarium settings.
Use of resistant strains (QTL-selected), certified disease-free broodstock.